Air-moistening device



W. B. KRKLAU AND C. BHETTSCHNVEIDER. AIR MISTENING DEVICE.

APPUCAUQN min ma. 4, 192x.

1,400,444. Patented Deu. 13, 1921.

@QQ/Mm A.UNITED STATES PATENT OFFICE.

WILLIAM IB. KRAKLAU AND CHRIST BRETTSCHNEIDER, OF ST. PAUL, IMINNESOTA.

Specication of Application filed April 4,

To all whom it may con/cem.'

Be it known that we, WILLIAM B. KRAE- LAU and CHRIST BRET'rsCHNEIDnR, citizens ,of the United States, residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented certain new and useful Improvements in Air-Moistening Devices, of which the following is a specification.

This invention relates to air moistening devices and has for one of its objects to provide readily attachable air humidifying means, for ordinary radiators used in connection with hot water heating plants.

A further object of the invention, is to provide an air moistening device, having automatic mechanism extending into the interior of the radiator whereby a uniform water supply for the device is maintained,

whereby the device is rendered self controlling.

A still further object of the invention, is

y' to' provide a deviceof the class described,

adapted to be connected to a radiator by means of the usual tapped opening provided to receive the air cock, and the usual central tapped end openings at the top of the radi-l ator, cutting through the end sections thereof. This end opening ordinarily is closed by a removable plug.

Another object of the invention is to provide a device of the class described, which will be cheap of construction, eHicient in operation and neat in appearance.

To thisend the invention consists in the construction, combination and arrangement of parts, hereinafter described and claimed.

VIn the drawings forming part of this specification.

' Figure l is a side view of the upper portion of a hot water radiator embodying our invention.

F ig. 2 is an end view of same.

Fig. 3' is a perspective'view of the tank ofthe device.

i anend section thereof. The sections ofthe radiator shown, are' joined together by the usual tapered nipples c, fitting into reamed` Patented Dee. 13, 1921. 1921. serial No. 458,428.

Letters Patent.

through the end section a, is the usual relatively large threaded plug opening d. Vertically alined with said plug opening is the tapped air cock opening e.

It is an object 'of our invention, to utilize said tapped air cock opening, from whence to draw our water supply, and said plug opening through which to extend a pipeJ into the interior of the radiator, whereby to heat the water in our moistening device.

The invention comprises a long rectangular liquid container or tank 1-, having a relatively large circular aperture 2 in one of the long walls thereof, and asmall opening 3 above said aperture, said aperture and opening registering with the openings d and e of the radiator. Having connection with the tank 1, is the sleeve 4, the latter comprising threaded ends 5 and 6, formed respectively with shoulders 7 and 8, the body portion 9 between said ends being hexagonal in cross section whereby it may be gripped with a wrench. The end 6 of the sleeve extends through the aperture 2 of the tank, and has threaded connection with the nut l0, which latter engages the gasket ll whereby a water tight joint is effected. By firmly setting the sleeve to. bring-its face 7 into tight relation with the radiator, a watertight connection is effected between the tank and the radiator. Centrally, the sleeve is tapped to receive the threaded end of the pipe l2, the latter extending through the conduit formed by the nipples c. free end,.within the radiator, the pipe is closed Aas by a cap 13 so that the pipe constitutes an extension of the interior of the tank. As the level of the water in theradiator is at all-times above the air cock openl ing 3, the pipe l2 is constantly totally immersed and functions as a heatingunit for heating the water in the tank. As the water from the tank completely llls the pipe which latter is level a circulation is set up, causing the. water to flows in the direction indicated by the arrows. (Fig. l.) Extending through the opening 3 1n the wall of the tank, is the water inlet valve B,

having a tubular body 15 formed with ashoulder 16, abutting against the wall of the tank, and having a threaded shank upon which threadedly tits the nut 14, said shank extending through said opening and said nut -being screwed' against the wall of the tank to force the latter against said shoulder,

so as to form a water tight joint between the tank and the vwater inlet valve.

The valve body 15 is screw-threadedly mounted in theJ air cock opening e and has a needle valve 16, screw-threaded at its outer free end so that it may be screwed longitudinally of the tubular body. The valve comprises an inner conic portion 1T and an outer oppositely disposed conic portion 18, the valve stem 19 extending beyond the tubular body and being suitably squared at 20, whereby the valve may be adjusted by the use of a suitable key.

The body 15 is formed with seats 21 and 22 adapted to engage respectively with the conic valve portions 17 and 18, so that the valve may be screwed in one direction to shut otl' the inflow of water from the radiator and i'n the other to prevent leaking around the stem.

Extending downward at right angles to the bore of the valve body, is the nozzle 23 having a discharge duct 24. The tip of the nozzle is adapted to rest on the rubber disk' 25, positioned in the bottom of the cup-likerecess 26, in the top of the head 27, which latter may be termed a stopper. Extending from the bottom of the `tank is the pivot support 28, carrying the pivot pin 29, whereon is pivoted the float rod 30, the latter carrying at its free end the hollow float 3l. The rod 30 rigidly carries the head `27 so as to bring the resilient disk 26 squarely against the end of the nozzle. Obviously, when the tank is full of water, the immersed ioat will cause the disk to press lirmly againstthe nozzle and thus check the flow from the radiator. Should the water level in the tank tall below a predetermined point, the pressure in the discharge duct will overcome the upward pressure of the float, thereby admitting water to the tank. Thus the water is-automatically discharged vat the proper time, and thereby a constant level maintained. y

state, a' cloth or wire netting 35, the latter y extending over the openings of the frames.

Along the lower inner edge of the tank, is

the outwardly extending knee 36, extendinglaterall across the tank, and engaging with the radiator to assist in supporting the tank in vertical position.

lVhat we claim as new: l. An air Amoistening device in connection with a hot water radiator, comprising a liquid container, a float controlled water inlet having a discharge opening, opening' intothe liquid container and in open conimunication` with the interior of the radiator, a pipe in open communication with the inA terior of the container and extending horizontally into the interior of the radiator, and a shut oft valve between said float controlled water inlet and the radiator. v

2. In an air moistening device, the com# bination with the uper portion otl a hot water radiator, said radiator consisting of vertical sections, each of said sections havng a relatively large threaded opening in opposite sides thereof, the openings vof all ot' said sections being in horizontal alinement, nipples threaded into said openings connecting` said sections, to form a continuous horizontal conduit, and a relatively small threaded opening vertically' above the relatively large threaded opening in the end ot' section of said radiator; of an air moistening device, comprising a liquid contaner, a float `controlled water inlet threadedly engaging said relatively small threaded opening and having its discharge opening in said container, a tubular extension below said water inlet in open communication with the interior of said container, said tubular extension extending into said conduit, and a plug threaded on said tubular extension at lts open end and having water tight connec.

tion with the side wall of said container, and threadedly fitting-into said relatively large opening in said end section ot the radiator. WILLIAM B. KRAKLAU,

CHRIST BRETTSCHNEIDER. Witness:

GEORGE VOELKER. 

